// RUN: not %target-swift-frontend %s -parse

// Distributed under the terms of the MIT license
// Test case submitted to project by https://github.com/practicalswift (practicalswift)
// Test case found by fuzzing

protocol a {
struct c, U) -> Any, y: d {
}
e : P {
}
protocol c : e {
}
typealias e : c(
